#include <bits/stdc++.h>

using namespace std;

#define ll long long int
#define nl endl
#define ss string
#define dl double
#define yes cout << "YES" << nl;
#define no cout << "NO" << nl;


int main() {
    ll t; cin >> t;
    if( t == 1)
     cout << 0 << nl;
     else 
    cout << 2 << nl;
   
    
    return 0;
}